In Like a Dragon: Infinite Wealth, the story unfolds around Kasuga Ichiban, a disgraced ex-Yakuza, and his friends, who are on a challenging mission to find his mother, facing constant adversities in the vibrant landscapes of Honolulu. Amid these threats and challenges, hopping a dolphin and heading to Dondoko Island provides Kasuga with a much-needed escape. Alongside the island's residents and two vibrant mascots, he sets out to rejuvenate the resort and transform it into a premier tourist destination.